1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* The industrial I/O core, trigger consumer functions
3 *
4 * Copyright (c) 2008-2011 Jonathan Cameron
5 */
6
7 #ifndef __LINUX_IIO_TRIGGER_CONSUMER_H__
8 #define __LINUX_IIO_TRIGGER_CONSUMER_H__
9
10 #include <linux/interrupt.h>
11 #include <linux/types.h>
12
13 struct iio_dev;
14 struct iio_trigger;
15
16 /**
17 * struct iio_poll_func - poll function pair
18 *
19 * @indio_dev: data specific to device (passed into poll func)
20 * @h: the function that is actually run on trigger
21 * @thread: threaded interrupt part
22 * @type: the type of interrupt (basically if oneshot)
23 * @name: name used to identify the trigger consumer.
24 * @irq: the corresponding irq as allocated from the
25 * trigger pool
26 * @timestamp: some devices need a timestamp grabbed as soon
27 * as possible after the trigger - hence handler
28 * passes it via here.
29 **/
30 struct iio_poll_func {
31 struct iio_dev *indio_dev;
32 irqreturn_t (*h)(int irq, void *p);
33 irqreturn_t (*thread)(int irq, void *p);
34 int type;
35 char *name;
36 int irq;
37 s64 timestamp;
38 };
39
40
41 __printf(5, 6) struct iio_poll_func
42 *iio_alloc_pollfunc(irqreturn_t (*h)(int irq, void *p),
43 irqreturn_t (*thread)(int irq, void *p),
44 int type,
45 struct iio_dev *indio_dev,
46 const char *fmt,
47 ...);
48 void iio_dealloc_pollfunc(struct iio_poll_func *pf);
49 irqreturn_t iio_pollfunc_store_time(int irq, void *p);
50
51 void iio_trigger_notify_done(struct iio_trigger *trig);
52
53 #endif
54
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